[Simh] need help with vax780 on linux

[Thomas Pfau]

Find out what your friend had the device type set to for this disk image and
set it to the same value in your vax.ini file.  I once had trouble trying to
boot the emulator off of a disk image that was copied from another system.
I hadn't set the device type.  After I did it booted with no problem.

On Sun, Jul 24, 2011 at 12:54 AM, Dan Gahlinger <dgahling at hotmail.com>wrote:

>  I don't know what platform the DSK file was created on,
> but I can read it with ods2 on linux, and it does at least partially boot.
>
> I have not gotten anything to boot with vax780 on my linux.
> simh was built on this same machine.
> I will mention the vax emulator runs fine, thats the 3900 emulator I
> believe.
> but vax780 not.
> the DSK file will not work on the vax emulator as it's a vax780 image,
> I get an error about "incorrect processor" it doesnt even display the
> version banner,
> the fact the vax780 displays the banner at least suggests its reading the
> DSK properly.
>
> is there a way to debug the fatal error?
>
> again, I know its a valid vms image in that DSK because ODS2 reads it
> properly.
> or at least that suggests its proper.
>
> I've rebuilt SIMH in several different directory trees on this machine, and
> get the same results.
> as for bootup, mostly I use the standard commands as some of the vax.ini
> don't work.
> heres the INI I've been using for vax780 startup, though I normally type
> these in manually
> and don't use the iso attach any longer.
>
> I went through a lot of trial and error to get things working this far,
> using the backup commands from the ISO boot.
> vms5.2 is the oldest I have, and 6.0 is the oldest workable ISO I have for
> this
>
> load -r /usr/local/vms42/ka655x.bin
> ;
> ; Attach non-volatile RAM to a file
> attach nvr /usr/local/vms42/nvram.bin
> ;
> ; This virtual machine has 64M memory
> set cpu 128m
> ;
> ; Define disk drive types. RA92 is largest-supported VAX drive.
> set rq0 cdrom
> set rq1 ra92
> set rq2 ra92
> set rq3 ra92
> ;
> ; Attach defined drives to local files
> attach rq1 /usr/local/vms42/vms42a.dsk
> attach rq2 /usr/local/vms42/vms42b.dsk
> attach rq3 /usr/local/vms42/vms42c.dsk
> ;
> ; Attach the CD-ROM to its file (read-only)
> attach -r ts0 /usr/local/vms42/vms42.tap
> attach -r rq0 /usr/local/vms42/vms6_0.iso
>
> Dan.
>
>
> > Hello!
> > This is a long shot, but here goes, what, ah, platform was the
> > original DSK file created on? That is what is their copy of SIMH for
> > the Vax running on?
> >
> > Next why not provide for us a copy of the methods used to initialize
> > the emulator. From that we may be able to advise you further.
> >
> > And this is extremely important, did you build your own copy of SIMH
> > for this release of SUSE? Or was it built originally on a different
> > platform?
> >
> > Oh and does the program run anything else properly? Other releases of
> > what the DSK blob you're trying to boot here, contains. It could be
> > our old friend VMS, or BSD or something we've not heard of before on
> > that DSK and so forth.
> > -----
> > Gregg C Levine gregg.drwho8 at gmail.com
> > "This signature fought the Time Wars, time and again."
>
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> http://mailman.trailing-edge.com/mailman/listinfo/simh
>



-- 
Thomas Pfau
tfpfau at gmail.com
http://www.linkedin.com/in/thomaspfau
http://nbpfaus.net/~pfau/
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